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Strong Casimir force reduction through metallic surface nanostructuring

Author

Listed:
  • Francesco Intravaia

    (MS B213, Los Alamos National Laboratory)

  • Stephan Koev

    (Center for Nanoscale Science and Technology, National Institute of Standards and Technology
    Maryland Nanocenter, University of Maryland)

  • Il Woong Jung

    (Center for Nanoscale Materials, Argonne National Laboratory)

  • A. Alec Talin

    (Center for Nanoscale Science and Technology, National Institute of Standards and Technology)

  • Paul S. Davids

    (Applied Photonics and Microsystems, Sandia National Laboratories)

  • Ricardo S. Decca

    (Indiana University-Purdue, University Indianapolis)

  • Vladimir A. Aksyuk

    (Center for Nanoscale Science and Technology, National Institute of Standards and Technology)

  • Diego A. R. Dalvit

    (MS B213, Los Alamos National Laboratory)

  • Daniel López

    (Center for Nanoscale Materials, Argonne National Laboratory)

Abstract

The Casimir force between bodies in vacuum can be understood as arising from their interaction with an infinite number of fluctuating electromagnetic quantum vacuum modes, resulting in a complex dependence on the shape and material of the interacting objects. Becoming dominant at small separations, the force has a significant role in nanomechanics and object manipulation at the nanoscale, leading to a considerable interest in identifying structures where the Casimir interaction behaves significantly different from the well-known attractive force between parallel plates. Here we experimentally demonstrate that by nanostructuring one of the interacting metal surfaces at scales below the plasma wavelength, an unexpected regime in the Casimir force can be observed. Replacing a flat surface with a deep metallic lamellar grating with sub-100 nm features strongly suppresses the Casimir force and for large inter-surfaces separations reduces it beyond what would be expected by any existing theoretical prediction.

Suggested Citation

  • Francesco Intravaia & Stephan Koev & Il Woong Jung & A. Alec Talin & Paul S. Davids & Ricardo S. Decca & Vladimir A. Aksyuk & Diego A. R. Dalvit & Daniel López, 2013. "Strong Casimir force reduction through metallic surface nanostructuring," Nature Communications, Nature, vol. 4(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3515
    DOI: 10.1038/ncomms3515
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    Cited by:

    1. Zhujing Xu & Peng Ju & Xingyu Gao & Kunhong Shen & Zubin Jacob & Tongcang Li, 2022. "Observation and control of Casimir effects in a sphere-plate-sphere system," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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